CODEWITHSUNDEEP
javascriptdate
BonJon
BonJon

Reputation: 799

How to setup the Month for my date?

I have a weird bug regarding javascript date object

I have something like 

 var year = 2014;
 var month = 11;
 var day = 29

 var date = new Date(year, month , day);
 console.log(date) -> give me Mon Dec 29 2014 00:00:00 GMT-0800 (PST) 

 var monthNum = date.getMonth();
 console.log(monthNum)  -> give me 11

If I change month to 12, it gave me Thu Jan 29 2015 00:00:00 GMT-0800 (PST)

I am not sure why the month is off by one. Can someone help me out about this? Thanks!

Upvotes: 1

Views: 52

Answers (3)

danmullen
danmullen

Reputation: 2510

Change the following line:

var date = new Date(year, month , day);

to:

var date = new Date(year, month - 1, day);

This is because months in the JS date constructor begin at zero, i.e. 0 = Jan, 1 = Feb, ...

Upvotes: 1

Gilad Eshkoli
Gilad Eshkoli

Reputation: 1263

Months in JavaScript date objects starts at 0. That means January is 0 while December is 11.

Upvotes: 4

Daniel A. White
Daniel A. White

Reputation: 190945

The months argument in that constructor are 0-based, not 1-based.

Upvotes: 3

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